Product Description:

The MLP140B-0035-FT-N0CN-NNNN linear primary unit belongs to the MLP Synchronous Linear Motors series from Bosch Rexroth Indramat. Designed for dynamic gantries and transport axes, it converts stator current directly into thrust along the machine bed. The unit uses a size 140 carcass and length code B for its active magnetic surface, and cabling exits through the front to reduce chain length on moving tables. A thermo-encapsulated coil package protects the windings, and because no encoder is installed, external position sensors must close the servo loop. This direct-drive arrangement supports precise linear motion without adding mechanical transmission elements between the motor and the moving load.

At a continuous operating point, the coil delivers 2415 N of nominal thrust when energized with a rated phase current of 7.7 A. The electromagnetic conversion uses a force constant of 313.6 N per ampere, while winding code 0035 uses slot geometry that gives a resistance of 15.9 Ω and an inductance of 80.0 mH. A voltage constant of 66.5 Vs/m indicates the back EMF generated during motion and helps match the motor to a compatible drive. Peak demand is limited by a maximum current of 41.3 A, and the steel reaction plate is subject to an idle attractive force of 11,000 N that must be supported by the guide system. The electrical values also influence current response and the voltage needed as speed rises.

During short-duty bursts, the mover can reach a thrust of 7650 N. The coil stack and encapsulation weigh 30.1 kg, and thermal losses reach 2512 W, which are removed by the built-in liquid cooling circuit. A minimum coolant flow of 3.6 l/min helps maintain stable temperature, and the cooling channels create a pressure drop of about 0.9 bar across the unit. The listed motion data includes an application velocity of 35 m/min and a travel speed of 85 m/min under nominal loading. Liquid cooling is useful in installations where continuous heat removal is needed in a compact machine layout.